Endoscopic full-thickness resection to treat active Dieulafoy's disease: A case report

Figure 6 Postoperative pathology. A: An ulcer that reached the muscular layer of the mucous membrane. Blood clots were present in the middle. There was denatured fibrous tissue at the bottom, a dilated and tortuous artery, intimal degeneration, vitreous degeneration of the smooth muscle near the ulcer side, and uneven thickness between the left and the right. Hematoxylin and eosin (HE) staining, × 40; B: Magnified image of Figure 6A. HE staining, × 100; C: Immunohistochemical desmin staining showing incomplete smooth muscle of the arterial wall and varying thickness, × 40; D: Magnified image of Figure 6C; magnification ×100.